About the Authors

Abdou Amza, Boubacar Kadri, Baido Nassirou
Programme National de Lutte Contre la Cecité, Niamey, Niger

Sun N. Yu, Nicole E. Stoller, Satasuk J. Bhosai, Zhaoxia Zhou, Jeremy D. Keenan, Thomas M. Lietman, Bruce D. Gaynor
F.I. Proctor Foundation, University of California San Francisco, San Francisco, California, United States of America

Charles E. McCulloch, Thomas M. Lietman
Department of Epidemiology & Biostatistics, University of California San Francisco, San Francisco, California, United States of America

Sheila K. West
Dana Center for Preventive Ophthalmology, Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, United States of America

Robin L. Bailey
Clinical Research Unit, Department of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom

Jeremy D. Keenan, Thomas M. Lietman, Bruce D. Gaynor
Department of Ophthalmology, University of California San Francisco, San Francisco, California, United States of America

Thomas M. Lietman
Institute for Global Health, University of California San Francisco, San Francisco, California, United States of America

Corresponding Author

bruce.gaynor@ucsf.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BDG TML JDK SKW AA. Performed the experiments: BDG TML JDK SJB RLB NES SNY BN BK AA. Analyzed the data: BDG TML CEM ZZ NES SNY AA. Wrote the paper: BDG TML CEM SNY AA.